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AR# 58644

LogiCORE IP Digital Pre-Distortion (DPD) v6.0 - The requirement of having the DCL state machine reset before starting the DCL process after boot up

Description

The DCL state machine has no defined default state which may cause a poor initial update. The poor update can prevent the DPD core from achieving good correction performance.

Note: This applies to all versions of the DPD core.

Solution

Send either the SET_DCL_PARAMETERS or RESET_DCL commands before issuing any of the RUN_DCL commands (RUN_DCL, RUN_DCL_WITH_ACCEL_QMC, or RUN_DCL_WITH_QMC). Either of these commands will reset to the state machine within the DCL routine.

For a detailed list of Digital Pre-Distortion (DPD) Release Notes and Known Issues, see (Xilinx Answer 33251)